民航客机扰流板模拟器刚度仿真与试验
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摘要
客机降落减速系统在飞机平稳着陆过程中的作用很重要。其中,扰流板在客机着陆时可以起到辅助减速的目的。通过模拟执行机构对扰流板施加拉压力时扰流板的刚度会发生变化。设计了相应的模拟器进行拉压测试,确定其刚度范围,并使刚度-位置呈线性变化。首先建立数学模型,通过力学分析计算得出理论范围,结合ANSYS有限元仿真分析刚度范围;其次使用MTS试验机进行刚度测试试验;最终确定扰流板模拟器的刚度线性变化的精准范围。
The role of the passenger landing speed reduction system in the smooth landing of the aircraft is very important. Among them,the spoiler can assist the deceleration when the passenger plane is landing.The stiffness of the spoiler changes as a function of the tension applied to the spoiler by the simulated actuator. In this paper,the corresponding simulator is designed to carry out the tensile and compressive test to determine the stiffness range and make the stiffness-position linearly change. Firstly,a mathematical model is established,and the theoretical range is obtained through mechanical analysis. The stiffness range is analyzed by ANSYS finite element simulation. Secondly,the MTS test machine is used to perform the stiffness test,and the precise range of the linear variation of the stiffness of the spoiler simulator is finally determined.
The role of the passenger landing speed reduction system in the smooth landing of the aircraft is very important. Among them,the spoiler can assist the deceleration when the passenger plane is landing.The stiffness of the spoiler changes as a function of the tension applied to the spoiler by the simulated actuator. In this paper,the corresponding simulator is designed to carry out the tensile and compressive test to determine the stiffness range and make the stiffness-position linearly change. Firstly,a mathematical model is established,and the theoretical range is obtained through mechanical analysis. The stiffness range is analyzed by ANSYS finite element simulation. Secondly,the MTS test machine is used to perform the stiffness test,and the precise range of the linear variation of the stiffness of the spoiler simulator is finally determined.
引文
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[2]刘北辰.工程计算力学理论与应用[M].北京:机械工业出版.
[3]刘鸿文.材料力学[M].北京:高等教育出版社,1990.
[4]严辛.正六边形孔蜂窝梁整体稳定及扰度分析[J].昆明理工大学,2015(5).
[5]彭斌,张立翔.基于ANSYS的风力发电机叶片的模态分析[M].昆明理工大学,2018(10).
[6]申伶,晁鹏翔,刘强,等.橡胶弹簧有限元分析方法研究[J].汽车实用技术,2018(20):128-130.
[7]邓凡平.ANSYS10.0有限元分析自学手册[M].北京:人民邮电出版社,2007.
[8]浦广益ANSYS WORKBENCH基础教程与实例详解[M].北京:中国水利水电出版社,2013.
[9]Zienkiewing 0 C,Cheung Y K.The Finite Element Method in Structural and Continuum Mechanics[J].London:McGraw-Hill,1967.
[10]周丽英,吴明春,何和智.正六边形蜂窝结构塑料板抗弯性能有限元分析[M].华南理工大学聚合物新型成型装备国家工程研究中心,2016.